Generation 1
| 1. | James William Macarthur-Onslow (1867-1946) Birth: 7 November 1867. Death: 17 January 1946. |
Generation 2
| 2. | Arthur Alexander Walton Onslow (1833-1882) Birth: 2 August 1833. Death: 30 January 1882. |
| 3. | Elizabeth Macarthur (1840-1911) Birth: 8 May 1840. Death: 2 August 1911. |
Generation 3
| 5. | Rose Roberta Macleay (c1805-1852) Birth: 1805. Death: 3 January 1852. |
| 6. | James Macarthur (1798-1867) (landowner, politician) Birth: 15 December 1798. Death: 21 April 1867. |
Generation 4
| 12. | 
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John Macarthur (1767-1834) (British army officer, entrepreneur, politician, pioneer of settlement in Australia) Birth: 1767. Death: 10 April 1834. |
| 13. | 
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Elizabeth Veale (1766-1850) Birth: 14 August 1766. Death: 9 February 1850. |
Generation 5
| 24. | Alexander Macarthur (c1721-?) (mercer and draper in Plymouth) Birth: 1721. |